Osamu Iida1, Mitsuyoshi Takahara2, Yoshimitsu Soga3, Akio Kodama4, Hiroto Terashi5, Nobuyoshi Azuma6. 1. Cardiovascular Center, Kansai Rosai Hospital. 2. Department of Diabetes Care Medicine and Department of Metabolic Medicine, Osaka University Graduate School of Medicine. 3. Department of Cardiology, Kokura Memorial Hospital. 4. Division of Vascular Surgery, Department of Surgery, Nagoya University School of Medicine. 5. Kobe University Graduate School of Medicine, Department of Plastic Surgery. 6. Department of Vascular Surgery, Asahikawa Medical University.
Abstract
AIM: To investigate the associations between preoperative characteristics and the risk of reintervention in patients undergoing revascularization for chronic limb-threatening ischemia (CLTI) in a contemporary real-world setting. METHODS: We retrospectively analyzed data from a clinical database formed by the Surgical Reconstruction Versus Peripheral Intervention in Patients With Critical Limb Ischemia (SPINACH) study, which was a multicenter, prospective, observational study. The study population was composed of 520 CLTI patients with the wound, ischemia, and foot infection (WIfI) classes I-3 with resting pain or classes I-2/3 with ulcers/gangrene. Of the 520 patients, 192 had surgical reconstruction planned, whereas 328 had endovascular therapy (EVT) alone planned at the time of registration. The current analysis was conducted to explore the associations between preoperative characteristics and the risk of reintervention. RESULTS: A total of 452 participants (87%) completed the 3-year follow-up regarding reintervention. The competing risk analysis estimated that the three-year cumulative incidence rates for reintervention and reintervention-free deaths were 44.0% and 28.7%, respectively. No preoperative characteristics had a significant interaction effect with EVT versus surgical reconstruction. The risk analysis identified the following independent risk factors for reintervention: 1) EVT instead of bypass reconstruction, 2) renal dysfunction, 3) history of revascularization after CLTI onset (i.e., requirement of redo revascularization for CLTI), and 4) bilateral CLTI. Patients with more than one of these risk factors had an increased risk of reintervention. CONCLUSIONS: The current study identified preoperative characteristics associated with an increased risk of reintervention. No preoperative characteristics had any significant interactions with EVT or surgical reconstruction.
AIM: To investigate the associations between preoperative characteristics and the risk of reintervention in patients undergoing revascularization for chronic limb-threatening ischemia (CLTI) in a contemporary real-world setting. METHODS: We retrospectively analyzed data from a clinical database formed by the Surgical Reconstruction Versus Peripheral Intervention in Patients With Critical Limb Ischemia (SPINACH) study, which was a multicenter, prospective, observational study. The study population was composed of 520 CLTIpatients with the wound, ischemia, and foot infection (WIfI) classes I-3 with resting pain or classes I-2/3 with ulcers/gangrene. Of the 520 patients, 192 had surgical reconstruction planned, whereas 328 had endovascular therapy (EVT) alone planned at the time of registration. The current analysis was conducted to explore the associations between preoperative characteristics and the risk of reintervention. RESULTS: A total of 452 participants (87%) completed the 3-year follow-up regarding reintervention. The competing risk analysis estimated that the three-year cumulative incidence rates for reintervention and reintervention-free deaths were 44.0% and 28.7%, respectively. No preoperative characteristics had a significant interaction effect with EVT versus surgical reconstruction. The risk analysis identified the following independent risk factors for reintervention: 1) EVT instead of bypass reconstruction, 2) renal dysfunction, 3) history of revascularization after CLTI onset (i.e., requirement of redo revascularization for CLTI), and 4) bilateral CLTI. Patients with more than one of these risk factors had an increased risk of reintervention. CONCLUSIONS: The current study identified preoperative characteristics associated with an increased risk of reintervention. No preoperative characteristics had any significant interactions with EVT or surgical reconstruction.
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